(April 2000) Current Ohio interstate sign. Ohio removed the state name back in the 1970's.
(April 2000) Cincinnati, OH. Older Ohio interstate sign with the state name. This was one of the later signs with a narrow "OHIO" font.
Another older Ohio interstate sign with the state name. I-80S is now I-76 (Photo by Joe Koehler).
Current style Ohio state route marker. Ohio has used the state stape on its signs from the beginning (My Collection).
Older cut-out Ohio state highway sign. These signs were used, both with crushed class reflectorization and Scotchlite reflectorization, from the 1930's - 1960's (Photo by Joe Koehler).
This image was scanned from the 1926 Rand McNally road atlas. Sign colors are black on yellow. When Ohio first numbered its routes, it used silver on black signs in the same format shown here.